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CountdownsHQ

Dates and timezone-correct countdowns for 150+ holidays and observances in 18 countries

CalendarAuth: NoneHTTPS: YesCORS: yesStatus: alive

Last verified: November 12, 2026

Reliability

100% uptime: the documentation responded in 5 of 5 checks over the last 30 days. Median response time: 233 ms.

How we check, and the most reliable APIs →

At a glance

// Fetch the docs page with cURL curl https://countdownshq.com/developers

History

  • November 12, 2026: last health check, responding

See every change to the directory →